Jack Winfield
United States
Summary
🤩
Rockstar🎓
Top SchoolJack Winfield is a web3-focused full-stack engineer with seven years of hands-on experience building scalable front-end and blockchain applications, blending a BS in interdisciplinary psychology with strong technical chops. He has led front-end and Solidity work for notable projects like Optimism—contributing to core L2 code, tutorials, and the community hub—and architected production deployments using Next.js, AWS, Auth0, and CI/CD. His background spans React, Rust, Python, GraphQL, PostgreSQL, and IPFS, plus applied financial risk expertise (options hedging, VaR, swaps) that informs product decisions in crypto-finance contexts. Jack has driven product strategy and developer tooling choices at early-stage companies, improving performance and developer experience while shipping audited smart contracts and NFT systems. Less obvious: he pairs behavioral insight from psychology with engineering, designing user-focused auth flows and real-time social-rating games that emphasize usability and engagement.
7 years of coding experience
4 years of employment as a software developer
University of Illinois Urbana-Champaign
Spanish
Stackoverflow
51reputation
8kreached
2answers
2questions
Github Skills (29)
javascript10
solidity10
optim10
testing10
vue10
chai10
ethereum10
erc2010
truffle10
opt10
vue-jsx10
documentation10
hardhat10
front-end-development9
typescripts8
Programming languages (14)
Github contributions (5)
ethereum-optimism/optimism-tutorial
Feb 2021 - Jun 2021
Build your first app on Optimism!
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:12 reviews, 57 commits, 20 PRs in 3 months
Contributions summary:Jack contributed to the development of an ERC20 token tutorial built on Optimism. Their work included updating the README and configuration files to reflect the latest changes. They also added testing for the ERC20 token, including transfer and transferFrom functions. Additionally, they updated the test setup to use environment variables and fixed issues related to revert messages.
first-app
ethereum-optimism/community-hub
Feb 2021 - Sep 2021
Optimism Governance Docs
Role in this project:Technical Writer & Front-end Developer
Technical Writer & Front-end DeveloperContributions:30 reviews, 72 commits, 91 PRs in 6 months
Contributions summary:Jack primarily contributed to the documentation of the Optimism Community Hub, enhancing its content and structure. They implemented changes to the front-end, including updates to the home page, adding links to GitHub, and improving the user interface. Significant effort went into organizing content and adding user-focused documentation regarding fees. The user also made structural changes to the website's configuration.
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